We removed a wooden dance floor that was glued to concrete with liquid nails. How do I remove the liquid nails that is all over the concrete floor? Has anyone had success with heat, mineral spirits or any other remover product?
Concrete – How to remove construction adhesive from concrete
adhesiveconcreteflooringremoval
Related Solutions
It is no problem and probably a good idea to use thinner to wipe up the stained poly. I would think the tricky part is going to be the tendency for the grain to get raised (rough) on the bare stained part. I think you will have to buff again but I might put 2 coats of poly down first. Then buff with a fine screen >=120 and put a final coat.
Be sure to turn off the pilot lights and watch out for anything that could flash that vapor.
I'd give the stain overnight to dry or at least til it is dry to the touch otherwise the stain will leak into the poly and muddy up the finish.
I've switched to water-based poly. Its expensive but it dries real fast and it now outperforms oil based. No companies are putting research money into VOC stuff and they suck for the environment.
Tool rental places probably rent concrete grinders for big jobs like refinishing concrete floors and then you can use a sander that get get into corners.
Floor Grinder
Concrete Sander
You can probably rent one or both of these, depending on the amount of glue. If it's just spotty you can probably use the hand sander.
Like I said, these are for professionally prepare floors for concrete finishing. If it is thin you might try belt sander or palm sander, and buy a sampling of sand papers and see which works best.
Belt Sander
Palm Sander
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Best Answer
Removing glue from any surface is a thankless task. You will not be able to return the floor to an as-built state. You're going to have to cover it with something.
You're going to have to dissolve it and scrape it. And it's going to be a heck of job.
Some expert google-fu has yielded Baby Oil as a potential solvent. Other suggestions were mineral oil.
However, I think a better solution would be to get a floor sander with a grinding pad and sand it off. Remember to wear a dust mask.